1. In a pot over medium high heat, sear chicken in butter with salt and pepper for 2-3 minutes per side until golden brown.
2. Add the chicken broth and BBQ sauce; mix, cover and simmer on medium low for 15-20 minutes (until internal temp reaches 165F or higher); turning the chicken over and mixing halfway though.
3. Take the chicken out and shred it with two forks, then return it to the pot with the sauce (if your sauce is thin you can turn the heat back on so some of the moisture cooks off).
4. Slice the buns in half and place a slice of cheese on the top half; broil in the oven for 1-2 minutes until golden brown (watch carefully because they will burn easily).
5. Serve with lettuce, onion, and cilantro and enjoy!
